Name: TM2AMI4LT I/O expansion module, Modicon M238 logic controller, Twido, 4 inputs voltage/current/temperature, non differential
Brand: Schneider Electric
Price: 960.55 EUR
Availability: InStock

I/O Expansion Module – 4 Analog Inputs (Voltage / Current / Temperature)

The TM2AMI4LT is an analog input expansion module designed for Modicon M238 Logic Controllers and Twido systems. It offers 4 non-differential analog input channels supporting voltage (0–10 V), current (0–20 mA), and temperature probes (Pt100 / Pt1000 / Ni100 / Ni1000). Powered by 24 V DC, the module is compact and DIN-rail mountable, making it ideal for industrial automation environments requiring precision analog measurements.

Key Features

4 analog inputs (0–10 V, 0–20 mA, or RTD temperature probes)
Compatible with Modicon M238 and Twido PLCs
12-bit input resolution (4096 steps)
High accuracy: ±0.2 % (voltage/current) / ±0.4 % (temperature)
Power supply: 24 V DC (19.2–30 V including ripple)
Electrical isolation: 2 500 V AC between I/O and internal logic
Compact dimensions: 23.5 mm (W) × 70 mm (D) × 90 mm (H)
Weight: ~0.085 kg
DIN rail 35 mm mount with removable screw terminal block

Technical Specifications

Inputs	4 non-differential analog inputs
Input types	Voltage (0–10 V), Current (0–20 mA), Temperature (Pt100/Pt1000, Ni100/Ni1000)
Input resolution	12 bits (4096 counts)
Supply voltage	24 V DC (range 19.2…30 V including ripple)
Isolation	2 500 V AC between I/O and logic
Current consumption	60 mA at 24 V DC
Operating temperature	0…+55 °C
Mounting	35 mm DIN rail
Weight	0.085 kg
Status	Discontinued (End of service: June 2024)

Applications

Industrial process monitoring and control
Temperature sensing with RTD probes
Voltage or current signal acquisition for automation
Analog signal scaling and processing in Modicon M238 systems

Advantages

Flexible analog input support (voltage, current, temperature)
High precision with 12-bit conversion
Compact design conserves panel space
Reliable performance under industrial conditions

Notes

Ensure all connections follow Schneider Electric’s installation and wiring guidelines for shielded cabling and grounding. The TM2AMI4LT is a legacy component – for new designs, consider Modicon TM3 I/O modules as current-generation alternatives.